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- types/note.ts: Note gains systems? + arose_from_id?; TaskKind includes 'issue'. - stores/tasks.ts: create/update accept IssueFields (kind/system_ids/arose_from_id). - api/systems.ts: getProjectIssues + TaskLike. - DashboardView.vue: 'Open issues' rail section from dashboard.open_issues (links to /tasks/<id>, project + status). - SystemsSection.vue (project Systems tab): 'Open issues' list via getProjectIssues, with system chips, links to /tasks/<id>. Both reuse existing CSS tokens. Issue-editor controls (kind selector / system multi-select / arose-from picker in WorkspaceTaskPanel) are the remaining S4b piece. NEEDS operator browser verification (CI typechecks only). Refs plan 825 (S4b frontend — lists). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>